Most cartridges are universal but there is a few varieties. You cannot bring in a cartridge and have them refill them. Some cartridges can be refilled, some can't. And typically a gram of oil will last longer than a gram of flower but there are some people that can use a gram of oil quicker than some can a gram of flower. Enjoy The Top Shelf and their staff, it's a great group of informed individuals with a great attitude!
I have smoked flower my whole life and three years ago I started dabing and now vaping. The Top Shelf staff has walked me through all, and they are very knowledgeable in all cannabis
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